Hi, this is my first project on SimScale and have done all starting tutorials and I believe I applied exact steps from on of them to get internal flow volume and couldnt acieve the necessary result.
Here you can see my last attempt on it, the circle opening will be for fans and those long walls with 3 and 3 holes are meant to be the exit for air.
Would be really glad for any help since I already viewed few videos and went step by step with them and still nothing… also I tried some other faces for Boundary faces which led to creating internal flow volume INSIDE the walls of project itself, and so creating exact like copy of 3D model, and not the “volume of air” in it.